Group think is an example of a bigger collection of weird things that our brains do to help us make decisions quickly when we don’t have enough information or time or patience or intelligence. Basically, our brains sometimes make decisions for us so fast that we don’t even have time to realize that there was a decision at all. It’s like when you see those weird cakes that look exactly like a piece of fruit or something. Your brain just kinda decides that you’re looking at an apple. It happens so quickly that it would never occur to you to wonder if you’re looking at a cake. You’ve seen a million apples. You know what apples look like. It’s an apple.